The ebay solenoid come defected, but I found on amazon another one, who is direct replacement for later Ford solenoids
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Lang's did not answer my question about their ignition switch, but I took original switch apart and it is integrated switch with headlights switch, so I confirm it will not fit model T directly.
Original switch comes apart with small twist and contacts are easy to clean, so I decided to put starter switch hidden under the dashboard. Unfortunately the original ignition switch directs the battery power to coils, so I can't use it for start button activation, or maybe I can?
Funny observation, yesterday doing grocery shopping a guy in front of me was carrying .... steering wheel. I wonder what it was, but concluded that he had to drive some kind of project car and having no other security- taking steering wheel with him was the solution.